EP0941423A1 - Procede de regeneration de garnitures de frein - Google Patents

Procede de regeneration de garnitures de frein

Info

Publication number
EP0941423A1
EP0941423A1 EP97954348A EP97954348A EP0941423A1 EP 0941423 A1 EP0941423 A1 EP 0941423A1 EP 97954348 A EP97954348 A EP 97954348A EP 97954348 A EP97954348 A EP 97954348A EP 0941423 A1 EP0941423 A1 EP 0941423A1
Authority
EP
European Patent Office
Prior art keywords
friction lining
profile
worn
lining
brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97954348A
Other languages
German (de)
English (en)
Other versions
EP0941423B1 (fr
Inventor
Bernhard Baumeister
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMD Friction EsCo GmbH
Original Assignee
Ruetgers Automotive AG
TMD Friction EsCo GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruetgers Automotive AG, TMD Friction EsCo GmbH filed Critical Ruetgers Automotive AG
Publication of EP0941423A1 publication Critical patent/EP0941423A1/fr
Application granted granted Critical
Publication of EP0941423B1 publication Critical patent/EP0941423B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/045—Bonding
    • F16D2069/0466—Bonding chemical, e.g. using adhesives, vulcanising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0483—Lining or lining carrier material shaped in situ

Definitions

  • the invention relates to a method for regenerating brake linings, in particular railway linings.
  • Brake linings have a friction lining applied to a lining carrier.
  • the friction lining layer is worn out due to the friction stress during braking, so that an exchange of the used brake lining is necessary.
  • Brake linings are usually already exchanged before the friction lining layer has been completely removed at the most worn location.
  • brake pads are usually replaced considerably before they are completely worn out.
  • railway linings are usually replaced when their friction lining layer is used up to about 50%.
  • the object of the invention is to provide a method for regenerating brake linings, in particular railway linings, which allows the used brake linings to be used more economically.
  • This object is achieved according to the invention by a method for regenerating brake linings, in particular railway linings, in which a friction lining layer is machined from its worn surface and provided with a three-dimensional surface profile, the profiled surface is coated with a binder, and then a fresh one Friction lining mass is pressed on.
  • This method has the advantage over the known methods that a much larger proportion of the non-abraded residual friction lining can be reused for the regenerated brake lining.
  • Possible inclined wear, ie uneven wear the old friction lining layer is completely compensated for by the regeneration process according to the invention.
  • the dusts or chips produced by grinding or milling off the surface of the friction lining can be passed on for further use, for example for road construction.
  • the three-dimensional surface profile creates a toothed transition between the old and the newly pressed-on friction lining mass.
  • the lining formed in this way can be rubbed over the newly applied friction lining layer, which enables the use of the entire new lining thickness.
  • At no stage of abrasion is a surface layer consisting largely of binding agent used for braking.
  • the worn surface is machined by profile grinding or profile milling such that a profiled surface with a tooth-shaped, trapezoidal or meandering profile perpendicular to the surface is produced, the profile opening up at least in sections in a first direction extends the surface.
  • the worn surface is machined by rough grinding in such a way that an irregular surface structure with essentially elongated depressions is produced, the depressions introduced extending at least in sections essentially in a first direction.
  • this machining is carried out successively in two intersecting directions.
  • a surface structure is generated which forms a large surface and into which the fresh friction lining pressed on engages, so that shearing off of the fresh lining is avoided.
  • the choice between the surface structures or profiles mentioned is made depending on the selected chip removal method, in particular the one tools used, and the desired application of the regenerated brake pads.
  • the profile depth of the surface structure is in the range of approximately 1 to 30 mm, preferably 5 to 20 mm.
  • the profile depth of the surface structure is selected so that there is a minimal risk of shear and a good connection between the old friction lining and the newly applied friction lining mass.
  • the profile depth is selected so that the largest possible proportion of the
  • Old friction lining mass can continue to be used, i.e. that the smallest possible proportion is removed by grinding.
  • a direction transverse, preferably at a right angle, to the direction of the main stress on the friction lining during the braking process is selected as the first direction. This further reduces the risk of the newly applied friction lining mass shearing off the old friction lining mass.
  • the respective first direction is changed in a plurality of mutually adjacent sections of the friction lining surface. This measure further improves both the adhesion and the shear strength of the applied friction lining mass.
  • a further development of the invention is characterized in that a worn-out friction lining layer applied to a sheet metal strip is removed down to a predetermined residual thickness in such a way that the sheet metal with the remaining friction lining layer forms a mechanically sufficiently stable structure for the further process steps.
  • This example is used in particular for railway coverings or other large coverings with relatively thin carrier plates.
  • the thin sheet in conjunction with a sufficiently thick remaining pad serve as a carrier for the regenerated brake pad.
  • the brake linings are replaced at a relatively early point in time at which the remaining friction lining is still sufficiently thick to allow the Stabilize structure.
  • the method according to the invention saves about 30 to 60% of the friction lining mass.
  • a phenolic resin or rubber-containing substance is preferably used as the binder in the process according to the invention.
  • FIG. 1 shows a plan view of a brake lining machined according to a first exemplary embodiment of the regeneration method according to the invention, the brake lining being shown after the machining has been completed;
  • 2A shows a schematic sectional illustration through the brake lining shown in FIG. 1;
  • FIG. 2B shows a schematic sectional view through the brake lining according to FIG. 2A after the fresh friction lining mass has been pressed on;
  • FIG. 3 shows a plan view of a brake lining processed according to an alternative exemplary embodiment of the method according to the invention, the brake lining being shown after the machining has been completed;
  • 4A is a schematic sectional view through the brake lining according to FIG. 3; and
  • FIG. 4B shows a sectional view through the brake lining according to FIG. 3 after the fresh friction lining mass has been pressed on.
  • the brake lining 1 shown in FIG. 1 has a friction lining layer 3 applied to a lining carrier 2.
  • the friction lining layer 3 is machined from its worn surface and provided with a three-dimensional surface profile.
  • the machined surface profile of the friction lining layer 3 extends in a first direction 4 in the brake lining shown.
  • Fig. 2A is a schematic sectional view of the brake pad shown in Fig. 1 along the line II.
  • the original worn friction pad surface is shown by a dash-dot line.
  • the worn friction lining layer 3 is firmly connected to the lining carrier 2 by means of an intermediate layer 10.
  • a three-dimensional tooth-shaped surface profile 7 is generated by means of the machining.
  • this profile can be sawtooth, trapezoidal or meandering.
  • the profile preferably extends transversely to the main direction of stress during the braking process.
  • the vertical profile walls point approximately in the direction of the force which the brake lining opposes during the braking process. This additionally increases the shear strength.
  • FIG. 2B shows a schematic sectional view through the regenerated brake pad.
  • FIG. 3 shows the schematic plan view of a brake lining in which the surface of the worn friction lining layer is provided with a three-dimensional surface profile according to an alternative exemplary embodiment of the method according to the invention.
  • machining grinding, milling
  • a profile extending in a first direction 4 is first generated.
  • the profile grinding or profile milling is then repeated in a second direction 5, the surface structure shown in FIG. 3 being produced.
  • FIG. 4A shows a schematic sectional illustration of the brake lining shown in FIG. 3 along the line II.
  • the surface profile 7 of the friction lining layer 3 is produced here by first grinding a part of the worn friction lining layer flat and then introducing the depressions shown with partially vertical side walls. The preceding surface grinding eliminates the uneven wear (oblique wear) of the surface of the friction lining layer 3 which may have occurred during operation.
  • the obliquely worn surface of the old friction lining layer is shown by a dash-dot line 6.
  • the intermediate layer arranged between the friction lining layer 3 and the lining carrier 2 has been omitted.
  • FIG. 4B shows the sectional view through the brake lining after the fresh friction lining layer 9 has been applied.
  • the binder layer applied between the old friction lining layer 3 and the fresh friction lining 9 is not shown. In as a rule it is so thin that it is not visible in cross-section on the scale shown.
  • the machining to produce the three-dimensional surface profile can be modified in such a way that different surface areas of the machined friction lining layer are provided with different surface profiles.
  • the surface profiles can have different orientations in different areas or sections of the friction lining surface.
  • the surface profile structure is selected depending on the shape and material of the friction lining layer, the type of application of the binder, the press-on process for the fresh friction lining mass and the stresses when using the brake lining.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP97954348A 1996-12-03 1997-12-01 Procede de regeneration de garnitures de frein Expired - Lifetime EP0941423B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19650026 1996-12-03
DE19650026A DE19650026C2 (de) 1996-12-03 1996-12-03 Verfahren zum Regenerieren von Bremsbelägen
PCT/EP1997/006731 WO1998025047A1 (fr) 1996-12-03 1997-12-01 Procede de regeneration de garnitures de frein

Publications (2)

Publication Number Publication Date
EP0941423A1 true EP0941423A1 (fr) 1999-09-15
EP0941423B1 EP0941423B1 (fr) 2002-10-09

Family

ID=7813451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97954348A Expired - Lifetime EP0941423B1 (fr) 1996-12-03 1997-12-01 Procede de regeneration de garnitures de frein

Country Status (9)

Country Link
US (1) US6623581B2 (fr)
EP (1) EP0941423B1 (fr)
JP (1) JP2001504929A (fr)
AT (1) ATE225911T1 (fr)
DE (2) DE19650026C2 (fr)
DK (1) DK0941423T3 (fr)
ES (1) ES2182150T3 (fr)
PT (1) PT941423E (fr)
WO (1) WO1998025047A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004550B4 (de) 2006-02-01 2016-12-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Bremsbelag für eine Scheibenbremse
CN100394060C (zh) * 2006-07-20 2008-06-11 西安超码科技有限公司 飞机炭刹车盘整体粘接维修方法
US20140190777A1 (en) * 2009-06-19 2014-07-10 Duroline S.A. Brake linings and process of manufacturing thereof
DE102014111548A1 (de) * 2014-08-13 2016-02-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Bremsbelag einer Scheibenbremse
CN108757772A (zh) * 2018-07-20 2018-11-06 盐城加申汽车制动部件有限公司 一种可牢固连接的刹车片

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542692C2 (de) * 1975-09-25 1983-01-27 Fichtel & Sachs Ag, 8720 Schweinfurt Reibbelag
FR2366157A1 (fr) * 1976-09-30 1978-04-28 Abex Pagid Equip Dispositif d'ancrage de garnitures de friction sur des plaquettes de support pour freins a disque
GB2085098A (en) * 1980-10-04 1982-04-21 Hickman Percy Friction Clutches and Brakes
JPS6455441A (en) * 1987-08-27 1989-03-02 Nisshin Spinning Friction material
DE3843901C1 (en) * 1988-12-24 1990-06-07 Kloeckner-Wilhelmsburger Gmbh, 2054 Geesthacht, De Brake or clutch lining carrier fitted with a friction lining, and a method for its production
GB2245667A (en) * 1990-06-28 1992-01-08 Ferodo Ltd Disc brake pad backplate
DE4201893A1 (de) * 1992-01-24 1993-07-29 Ruetgers Pagid Ag Verfahren zur aufarbeitung nicht mehr verwendbarer brems- und kupplungsbelaege
US5384991A (en) * 1993-03-17 1995-01-31 Leinweber Maschinen Gmbh & Co. Kg Method and apparatus for grinding and slotting friction products
DE4334207C1 (de) * 1993-10-07 1994-12-01 Fichtel & Sachs Ag Verfahren zur Herstellung eines Reibbelages
DE4414058A1 (de) * 1994-04-21 1995-10-26 Raybestos Ind Produkte Gmbh Kupplungsscheibe o. dgl. und Verfahren zu ihrer Herstellung
GB9506032D0 (en) * 1995-03-24 1995-05-10 T & N Technology Ltd Backplate for friction material
AUPO426296A0 (en) * 1996-12-18 1997-01-23 Hi-Bond Research Pty Ltd Friction lining attachments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9825047A1 *

Also Published As

Publication number Publication date
DK0941423T3 (da) 2003-02-10
DE19650026C2 (de) 2003-04-10
WO1998025047A1 (fr) 1998-06-11
US6623581B2 (en) 2003-09-23
US20020104604A1 (en) 2002-08-08
PT941423E (pt) 2003-02-28
ES2182150T3 (es) 2003-03-01
ATE225911T1 (de) 2002-10-15
EP0941423B1 (fr) 2002-10-09
JP2001504929A (ja) 2001-04-10
DE19650026A1 (de) 1998-06-04
DE59708455D1 (de) 2002-11-14

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